Magnetic sensors can measure distances between vehicles
Tuesday, October 18, 2011 - 06:30
in Physics & Chemistry
(PhysOrg.com) -- Every vehicle has a magnetic field, and researchers have now found that a vehicles magnetic field has an inverse relationship with distance at small distances. The relationship provides a way to estimate a vehicles position using its magnetic field when the vehicle is less than a few meters away, which could be useful for detecting imminent collisions just before they occur.